#423FD4#423FD4

#423FD4 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.6% C 0.220 H 275.0°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#423FD4
RGB	rgb(66, 63, 212)
HSL	hsl(241, 63%, 54%)
HSV	hsv(241, 70%, 83%)
CMYK	cmyk(68.9%, 70.3%, 0%, 16.9%)
CIE-LAB	lab(36.87, 47.66, -75.74)
CIE-LCH	lch(36.87, 89.49, 302.18°)
OKLab	oklab(47.59% 0.0191 -0.2189)
OKLCH	oklch(47.59% 0.22 275)
XYZ	xyz(15.9040, 9.4652, 63.2634)
Luminance	0.0947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FD4 #D1D43F

analogous

#3F87D4 #423FD4 #8D3FD4

triadic

#423FD4 #D4423F #3FD442

tetradic

#423FD4 #D43F87 #D1D43F #3FD48D

square

#423FD4 #D43F87 #D1D43F #3FD48D

split-complementary

#423FD4 #D48D3F #87D43F

monochromatic

#1E1C7D #2A27AF #423FD4 #7371DF #A4A3EA

Accessibility & contrast

On white

7.26

#423FD4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#423FD4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FD4

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FD4	#FFFFFF	#000000	##FFFFFF
##423FD4	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD8

Deuteranopia (green-blind)

#0050D1

Tritanopia (blue-blind)

#006885

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #423fd4;
/* rgb */ color: rgb(66, 63, 212);
/* oklch */ color: oklch(47.6% 0.220 275.0);

Tailwind

colors: {
  custom: {
    50: '#8a75e2',
    500: '#423fd4',
    950: '#000000',
  },
}

SCSS

$custom: #423fd4;
$custom-light: #8a75e2;
$custom-dark: #000000;

JSON

{
  "hex": "#423fd4",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 212
  },
  "hsl": {
    "h": 241.208,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47586,
    "c": 0.21974,
    "h": 275
  },
  "luminance": 0.09467
}

Semantic roles & 50–950 ramp

primary

#423FD4

secondary

#D6D798

accent

#E641E3

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423FD4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →